The Moon's composition is similar to Earth's ________
Fill in the blank(s) with correct word
mantle.
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The rapid rotation in the outer disk suggests that our galaxy is more massive than previously thought
Indicate whether the statement is true or false
The first of two identical boxes of mass m is sitting on level ground. The second box is sitting on a ramp that makes an angle with the ground. When a force of magnitude F is applied to each box in a direction parallel to the surface it is on, upwards on the box on the ramp, neither box moves. Which statement comparing the friction force on the box on the level, Fs,L, to the friction force on the
box on the ramp, Fs,R, is correct?
a. Fs,R = Fs,L.
b. Fs,R > Fs,L.
c. Fs,R
The restoring force of a spring is proportional to the displacement of the object at the end.
Indicate whether the statement is true or false.
The predominant gas in the atmosphere of Earth is
A) oxygen. B) nitrogen. C) water vapor. D) carbon dioxide. E) methane.